Path Traversal in Busybox
CVE-2026-92205
BusyBox libarchive Symlink Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows remote attackers to create arbitrary files on affected installations of BusyBox. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the libarchive component. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of the current user. Was ZDI-CAN-27556.
Vulnerability class: Path Traversal (Directory Traversal)
Published .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Busybox — versions 1.37.0
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-26-705/ (x_research-advisory)
Frequently asked questions
- What is CVE-2026-92205?
- CVE-2026-92205 is a medium-severity vulnerability in Busybox, classified under Path Traversal. CVSS score: 6.1/10. Published 2026-10-21.
- How severe is CVE-2026-92205?
- Medium severity. CVSS v3 base score is 6.1 out of 10.